... snap buttons, 3.Waterproof PUL outside, 4.Microfleece inner,microfiber insert 1.Waterproof PUL outside: It's convenient for mammy to ... has super-absorbing performance and solid water locking,4. Inner: Insert: 100% microfiber terry cloth, 3 layers, babys sleeping environment ... moisture which is easy for bringing bacteria, our microfiber insert absorb urine fast and reduce the pollution.5.Aloe Liners ...